8 years 7 months 21 days × 9=How many years, months, days?

8 years 7 months 21 days × 9 = 72 years 63 months 189 days. 189 days = 30 × 6 + 9 = 6 months 9 days. Now, add 6 months with 63 months = 63 + 6 = 69 months. 69 months = 12 × 5 + 9 = 5 years 9 months. Now, we will add 5 to 72 years. Hence, the answer is 77 y e a r s 9 m o n t h s 9 d a y s .

21 years 7 months 6 days ÷ 9

Given, 21 years 7 months 6 days Let us convert the given in number of days. 21 × 365 = 7665 d a y s 7 × 12 = 84 d a y s Thus, total number of days = 7665 + 84 + 6 = 7755 d a y s Now, dividing 7755 ÷ 9 = 861 . 67 ( a p p r o x i m a t e l y ) days.